[vintageogauge]

Originally Posted by tophcfa

Hmmmm, 3 or 4 times per year I remove every donut, clear the area all around where it sets, and then replace it making sure it centered, level and the correct height. I didn't realize there was a special tool, I just use my hands and then give them a good washing when finished.

You probably don't have St. Augustine grass, you have to cut the runners back.